I understand Troy, especially his fear of a burnout. That's no joke. I think there are several interesting companies, besides Mozilla. I could see F-Secure making an offer. HIBP ticks a lot of boxes when it comes to business security, password reuse beeing a big issue there. Mikko and his team have a proofen track record and are well connected in the grey-hat area. Plus, they are in Finnland, near to Norway :)
Undermine the service for who? The person who asked to have their data removed or the company who is interested in data about a specific person. If the answer is the latter then I think its fair that the person can ask to have their information removed. I think that Troy understands this distinction too and I also hope that HIBP remains that way.